CP Ch13.2 Lenses

What are some key features of a converging lens?

• Centers of curvature

• Principal axis

• Focal points

• Diverging points

What causes the moving patterns of bright and dark areas in water?

• Reflection

• Diffraction

• Refraction

• Dispersion

What is the suggested activity involving determining the magnifying power of a lens?

• Measuring the focal length of the lens

• Calculating the refractive index of the lens material

• Testing the durability of the lens

• Analyzing the color dispersion of the lens

Why do wavefronts travel more slowly in glass than in air?

• Due to the higher density of glass compared to air

• Due to the lower density of glass compared to air

• Due to the higher speed of light in glass compared to air

• Due to the lower speed of light in glass compared to air

How can lenses affect light rays based on their shape and thickness?

• Converge light rays only

• Diverge light rays only

• Converge or diverge light rays

• Reflect light rays

What are real lenses made of?

• Plastic

• Metal

• Solid piece of glass

• Liquid

What is the focal length of a lens?

• Distance between the center and the focal point

• Distance between the lens and the object

• Distance between the lens and the screen

• Distance between the lens and the mirror